Hourly Weather | Today Thursday, August 27, 2026
Active Weather Warnings
Stamford, Connecticut
9 PM
Stormy Weather
73°
Feels Like 75°
56
Humidity: 91%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
73°
Feels Like 77°
49
Humidity: 90%
UV Index: 0
Wind: 7 mph
11 PM
Stormy Weather
73°
Feels Like 72°
63
Humidity: 92%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.28 µg/m³
  • PM10: 3.83 µg/m³
  • O3: 0.033 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.12 µg/m³
  • PM10: 3.75 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.04 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.030 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Weather Alerts and Warnings for Stamford

Severe Future Possible

Flood Watch

Flood Watch issued August 26 at 2:27PM EDT until August 27 at 11:00PM EDT by NWS Upton NY
Aug 27, 12:00 PM Aug 27, 11:00 PM
WHAT: Flooding caused by excessive rainfall is possible.

WHERE: Portions of southern Connecticut, including the following
areas, Northern Fairfield and Southern Fairfield, northeast New
Jersey, including the following areas, Eastern Bergen, Eastern
Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen,
Western Essex, Western Passaic and Western Union, and southeast New
York, including the following areas, Bronx, Kings (Brooklyn), New
York (Manhattan), Northern Nassau, Northern Queens, Northern
Westchester, Orange, Putnam, Richmond (Staten Island), Rockland,
Southern Nassau, Southern Queens and Southern Westchester.

WHEN: From Thursday afternoon through Thursday evening.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.

ADDITIONAL DETAILS:
- Total rainfall amounts are around 1 to 1.5 inches in the watch
area, but some areas could receive up to 3 inches with peak
rainfall rates between 1.5 to 2.5 in/hr.
- http://www.weather.gov/safety/flood
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You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Updated: Aug 26, 9:09 PM Source: NWS Alert